tinc/debian/preinst

#!/bin/sh

NETSFILE="/etc/tinc/nets.boot"
SYSTEM="/lib/systemd/system"
WANTS="/etc/systemd/system/multi-user.target.wants"

set -e

case "$1" in
	upgrade)
		if dpkg --compare-versions "$2" '<<' "1.1~pre11-1"; then
			if [ -f "$NETSFILE" ]; then
				echo -n "Creating systemd service instances from nets.boot:"
				mkdir -p "$WANTS"
				egrep '^[ ]*[a-zA-Z0-9_-]+' $NETSFILE | while read net args; do
					echo -n " $net"
					ln -s "$SYSTEM/tinc@.service" "$WANTS/tinc@$net.service" 2>/dev/null || true
				done
				echo "."
			fi
		fi
	;;

	*)
	;;
esac

#DEBHELPER#